已解决python邮件发送报错smtplib.SMTPDataError: (550, b‘The “From“ header is missing or invalid._smtplib.smtpdataerror: (550, b'the "from" header i

作者：小丑西瓜9 | 2024-04-16 05:25:43

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smtplib.smtpdataerror: (550, b'the "from" header is missing or invalid. plea

使用python邮件发送时报错：smtplib.SMTPDataError: (550, b'The "From" header is missing or invalid.Please follow RFC5322，RFC2047，RFC822 standard protocol. https://help.mail.qq.com/detail/0/994

最后经过努力成功解决该错误。详细解决过程和解决方案如下所示:

一、问题发生的现象

在使用python发送qq邮件时，定义了如下发送邮件的代码：


         .................
        email = MIMEText(message,send_email_type, "utf-8")
        email["From"] = Header(header_from, "utf-8")
 
        email["To"] = Header(header_to, "utf-8")
        email["Subject"] = Header(subject, "utf-8")
        .............................

但运行程序时，报以下错误：

mtplib.SMTPDataError: (550,

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